Consolidated Statement of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Net Income	$ 14,850	$ 10,480	$ 21,840	$ 18,780
Other comprehensive income
Defined benefit pension and postretirement plans, net of tax	160	150	330	300
Foreign currency translation	1,930	(4,080)	3,730	(6,740)
Derivative instruments, net of tax	(400)	(1,330)	(20)	(4,290)
Total other comprehensive income (loss)	1,690	(5,260)	4,040	(10,730)
Total comprehensive income	$ 16,540	$ 5,220	$ 25,880	$ 8,050